Acetylene-gas burner.



No. 653,347. Patented July l0, I900.

n. GENESE.

ACETYLENE GAS BURNER.

(Application filedlune 12, 18991) (No Model.)

aw/#02? Jami $67360??? NITED STATES PATENT ()F-rrcn.

DAVID GENESE, OF BALTIMORE, MARYLAND.

ACETYLENE- -GAS BURNER.

SPECIFICATION forming part of Letters Patent No. 653,347, dated July 10,1900.

Applieationfiled June 12,1899 Serial No. 720,210. (No model.)

To all whom it may concern.-

Be it known that 1, DAVID GENESE, a citizen of the United States,residing at Baltimore city, in the State of Maryland, have invented newand useful Improvements in Burners for Acetylene-Lamps, of which thefollowing is a specification. My invention relates to an improved burnerfor acetylene-lamps.

It is one object of myinvention to provide 7 a burner for use withacetylene gas which by reason of its peculiar construction shall cause asolid bright flame to be produced without any part of the burner beinginterposed in the path of the flame to cause a shadow.

It is a further object of the invention to provide a burner which shallbe non-oxidizable and practically self-cleaning.

Further objects of the invention relate to details of construction, aswill more clearly hereinafter appear.

In the accompanying drawings I have shown a complete burner constructedaccording to my invention and have also illustrated the various stepsfollowed in the manufacture thereof, the views being greatly enlarged.

In said drawings, Figure 1 is a View of a piece of sheet-platinum cut tothe shape for forming a burner. Fig. 2 is a perspective view of thesheet, showing it punctured along the median line by a series ofneedle-pointed mandrels. Fig. 3 is a perspective view showin g the sheetbent upon the median line about said mandrels and folded at its sideedges. Fig. at is a section through adie or press having the foldedsheet and mandrels inserted therein forcompressing the portion of thesheet between the mandrels and the sides of said folded sheet firmlytogether. Fig. 5 is a perspective view of the burner as it appears whenremoved from the press or die, showing the platinum compressed about themandrels. Fig. 6 is a section through a mold, showing the burner thereinand surrounded or incased in a jacket of lava, porcelain, or othernonfriable or refractory substance. Fig. 7 is a view of the completedburner.

The reference-numeral 1 indicates a sheet of platinum which is cut tosuch shape that when bent or doubled upon itself on the median line(indicated by dotted lines at 2) it will have the form substantially ofa flattened .is doubled upon itself, as shown in Fig. 3.

In proceeding according to my invention I take a sheet of platinum ofthe shape shown in Fig. l and puncture it along the line 2 by 7 means ofa number of sharp-pointed mandrels 6, the points of puncture beingindicated at 7. Each of these mandrels tapers uniformly from its butt toits point, and in piercing the sheet they are pushed through a greateror less distance, according to the size of the aperture desired. Themandrels are left in the openings made, and the part 3 is then doubledover them and the flaps 5 bent over the edge portions of the said part3, as shown in Fig. 3, and soldered. or otherwise secured thereto. Itwill be seen that the mandrels are so arranged that the outer mandrelsconverge from the bottom to the top of the burner. The burner, with themandrels therein,is now placed in a press or die 8, Fig. 4, and theplatinum firmly pressed together between and at the sides of themandrels and closely about the same, so that when removed from the pressor die the burner has the appearance shown in Fig. 5. The mandrels 6 maynow be removed, and the burner (indicated generally by the numeral 9 inFig. 5) be soldered in the supply-tube of the lamp and be ready for use.I prefer, however, to inclose the platinum burner in a casing or jacketof porcelain, lava, or other non-friable or refractory substance. Forthis purpose I place the burner 9, without removing the mandrels, in amold 10, Fig. 6, and thereby from about the burner a protective coating11 of a substance such as named.

In Fig. 7 I have shown the burner complete or as it appears when removedfrom the mold 10 and with the mandrels withdrawn. This burner may beinserted and wedged in the opening of a supply-pipe of a lamp and heldtherein without the necessity of employing solder, as in the case of anordinary gas-tip. The mandrels 6 are preferably of platinum,

as this substance will not expand under the heat of the mold andpossesses no affinity for ISO such substances as lava, porcelain, or thelike employed in forming the protective jacket or casing 11. On removingthese mandrels from the burner a series of passages 12 will be lefttherein extending through the burner from bottom to top thereof anddecreasing in diameter from their bottom to their top ends, as shown. Inthe drawings I have shown three passages extending through the burner;but I may employ only two or any number greater than two, according tothe size of the burner desired; but whatever the number of thesepassages they are so disposed relative to each other that if projectedupwardly they would meet at a common point. By this arrangement theseparate flames issuing from the passages 12 are projected to a centralpoint and unite to form a solid flame. The distance between the severalorifices at the top of the burner is such, however, that the flames willunite by attraction and give the appearance of a solid flame issuingfrom a single orifice. In all burners for use with acetylene gas withwhich I am familiar two jets are projected toward each other onhorizontal or inclined lines, so that the flames will unite to form whatis known as a fish-tail flame. In all such constructions a portion ofthe burner lies in the path of the flame and will therefore cast ashadow, and such burners are further objectionable by reason of the factthat considerable energy is expended in forcing the two flames together,so that a greater amount of gas is consumed in producing a flame ofgiven size than would ordinarily be the case, and a large part of eachseparate flame will be non-illuminating, owing to the force with whichit issues from its burner or tube. In burners constructed according tomy invention the objections noted are entirely overcome. The variousflames are directed toward a central point, owing to the arrangement ofa series of converging passages extending through the burner, but lyingin the same plane, so that no part of the burner lies in the path of theflame, and owing to the proximity W of the discharge-orifices theseseparate flames unite by attraction practically immediately on issuingfrom the burner, so that, as stated, a solid white flame is produced ofgreat intensity. By having the passage 12 tapering, as shown, I canregulate the size of the discharge orifices in accordance with the sizeof the burner, and by making the dischargeopenings i'ngs I therebyprovide for discharging the gas from the burner with the necessary forcewithand the burner will be in a large measure selfcleansing.

I have mentioned platinum as the metal of which the burners are made andprefer its use for the reasons given; but it is evident that othermetals capable of being manipulated as described could be employedwithout departing from the spirit of my invention.

.So far as other metals could be employed,

therefore, in carrying out myinvention I wish expressly to include themwithin the scope of my invention.

.Having thus fully described my invention, what I claim as new is 1. Aburner for acetylene gas made of thin sheet metal and having moldedabout the same a protective jacket composed of a non-friable orrefractory substance, substantially as described. I

2. A burner for acetylene gas made of malleable metal and incased in ahard protective jacket, substantially as described.

3. Aburner for acetylene gas made of a single sheet of metal doubledupon itself and provided with a series of independent gas-passagesextending between the two thicknesses of metal, substantially asdescribed.

4. A burner for acetylene gas made of a single sheet of platinum doubledupon itself and firmly pressed together at intervals, and atfordingbetween such united portions a series of converging gas-passages,substantially as described.

5. A flat burner for acetylene gas having a series of non-communicatingpassages'extending therethrough in the same plane and converging towardthe npper end of the burner, the outlet ends of said passages lying inthe plane of the upper edge of the burner being at such distances apartthat the separate flames issuing therefrom will unite by attraction intoa solid flame extending in the same plane as the burner, substantiallyas described.

6. A burner for acetylene gas having a series of non-communicating,tapering passages extending therethrough in the same plane andconverging toward the upper end of the burner, the outlet ends of saidpassages being at such distances apart that the separate flames issuingtherefrom will unite by attraction into a solid flame extending in thesame plane as the burner, substantially as described. of these passagessmaller than the inlet-open- In testimony whereof I have hereunto set myhand in presence of two subscribing wit- DAVID GENESE.

nesses. out the necessity of increasing the pressure of the gas or theconsumption thereof. The plati- Y num will not be corroded by the gas,so that the consumption will be practically complete Witnesses:

HARRY O. MATI-IIEU, WM. MENIKEN.

